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Altera_Forum
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16 years ago

why my tsu is so long?

my design using EPC16Q240C8N,and classic time analyizer setup is :tsu=3ns,tco=5ns,tpd=5ns,th=3ns but look at the picture ,why slack is all -?? and what can i do now? and ,my main clolck is...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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could you please give me a recommend value about tsu,tco,tpd,and th ?

I am a beginner ,and i dont know how to setup it

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Hi,

difficult to say without knowledge of your system. You have to look to the datasheets of the sources and destinations, in order to to find out their requirments.

Kind regards

GPK